class_docstr: Deprecated
  
  Context manager that does nothing.
code: def __enter__(self):
      pass
  
file_path: catboost/contrib/python/ipython/py2/IPython/utils/contexts.py
imports: import warnings
label_desc: Use image node_id 2 for calling the NoOpContext obj's underlying member method code with example usage: obj.__enter__() without return types